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Physical Properties of Sprayed Polyurethane Skin for Instrument Panel
Technical Paper
2005-01-1217
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Physical properties of sprayed polyurethane skin for instrument panel were investigated. Optimized sprayed PU(polyurethane) composition for instrument panel was determined by reaction speed measurement, which were polyol of 6000 molecular weight and modified MDI (NCO=25%). For making sprayed PU skin, raw material was sprayed from 15 cm of distance, at 15 g/min of spraying rate, on 70°C of mold, with 75°C of raw material. Sprayed PU skin had lower density than PVC skin when investigating cross sections of skins using scanning electron microscope (SEM). But the reliability test results satisfied all the specification requirements like scratch, chemical resistance, contamination resistance and fogging. Tensile strength, hardness and elongation of sprayed PU skin were slightly changed during heat aging, but the changing rate was much smaller than those of PVC skin.
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Authors
Citation
Kim, O., Oh, W., Chun, Y., and Park, S., "Physical Properties of Sprayed Polyurethane Skin for Instrument Panel," SAE Technical Paper 2005-01-1217, 2005, https://doi.org/10.4271/2005-01-1217.Also In
References
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